Shuttle-eye guard



March 3, 1931. w. H. SHERMAN (Y 1,794,371

I SHUTTLE EYE GUARD Filed March 13. 1930 5. I 228; h I'NVENTOR: M Y

Patented Mar. 3, 1931 ri: STATES WILLIAM H. SHERMAN, or METHUEN, MASSACHUSETTS, AssIGIioR To ui sfiaoismnfa SHUTTLE COMPANY 1929, or rnovrnnnon,.,nnonn ISLAND, A QOB PORATION or RHODE ISLAND SHUTTLE-nan GUARn Application filed March-13,1930. Seria1. 1 1'o. 435;538.;

This invention relates to shuttles. It is particularly applicable to shuttles of the self threading or automatic type in which there is adiagonal threading slot leading out to an eye in the wood, assoclated with a metal threading block wlnch forms part of the top of one side of thethreading slot.

My purposes are'to provide alining for the outlet of thethreading slot, or what we call the eye in the wood, of a Character which will not be cut nor worn by the thread, but

will allow the thread to run freely and will protect the wood; and also to provide a locking device or tooth which will allow the shuttle to thread without difficulty but will lock-the thread in place after the first or second pick. 1

In the drawings, Fig. 1 is a plan view of the front end of a shuttle with my device in position.

Fig. 2 is a side elevation of a shuttle such" as shown in Fig.1 as viewed from the bottom of Fig.1.

Fig. 3 is an elevation from the back of my device removed from the shuttle.

Fig. 4 is a sectional elevation as viewed from the right of line 44 of Fig. 3.

Fig. 5 is a front elevation of my device removed from the shuttle.

- Fig. 6 is an elevation as from the right of Fig. 5.

Fig. 7 is a view from the bottom of a shuttle block such as I prefer to'use with my de- 2 of a shuttle with the type of shuttle guard vice. I

Fig. 8 is a perspective of a modified form of shuttle guard. s

Fig. 9 1s a s1 le elevation snnilar to Fig.

shown in Fig. 8 in place.

In the drawings, A represents the wooden part of a shuttle which has the usual metal tip-10, bobbin recess 11, threading block recess 12 for the threading block B. threading recess 13 and threading slot F which extends diagonally backwardfrom recess 13I-and terminates at the side of the shuttle in an eye in the wood indicated by 15.

16 indicates the front wall of this threadin slot F and near the rounded end 17 of fr dnt wall 16 is a vertical recess 18 part of.

which extends down at 19 as a point to receive the front bend 38 and point 39 of my.

', eyelining C to be described.

,"Prefera'bly the top surface; adjoining the bend 3 8 and 31116 are smooth and rounded" and merge one with'the other.

The back wall is rounded and indicated by 1A known type having alslopi'ng top guide wall 21, nose20 from'which'e'Xtends backward the front wall 24 which forms part; of the back :wall of thethreading slot F and preferably without any break orv opening merges with the rest of the back wall 14 of slot F,

27' represents what I will call"- a"wing formed by wall. 241- and thlejback wall 2.6,as shown in Fig. 7 ,which' come together ;at 25.

v Adjoining and underneath thiswin'g tip 25 is a recess129to receive the upper fend 34 of the back arm '30 of my metal eye lining G. This eye lining is madeof relatively flat.

sheet metal and include's' the front arm and thus back arm 30 united at'th 1 1 1 3 forminga U shaped em Back arm 30 terminates at the top in straight end which may be slightly beveled ofi' either to fit intoa' recessQQ-in the under part of block -B or merely] to rest against such under part in back of wing tip 25. I The-front arm 32 iscut away'at a slant at 33 and is bent over and forward'at 38and thence down at 39 to forma' tooth. Bend 38 enters the recess 18and tooth 39 enters tooth hole 19 as described. 1 V

I prefer to use a holding tooth 36 which as represents a shuttle block ofa well I shown is forced out, back and down from.

front arm 32 leaving apassage 37..

The tip 136 of this tooth enters a suitable hole or recess 31 in back arm 30 which is of Lining C cannot escape unless block B is removed.

However, as shown in Fig. 8, I can use a 1 modified construction in which the front arm 5 42 and back arm 40 are curved around some- 7 what in S shape and terminate at 48 and 44 W the arms being connected at 45 and the holding tooth 46 being bent out leaving hole 47 and extending back into the reces or hole 41 in 10 back arm 40.

This type of lining is pushed in from the side instead of down from the top and has no holding tooth corresponding with 39 and no front arm bend corresponding with 38.

Fig. 9 shows this lining inpla'ce in a shuttie.-

1. The combination in a self threading shuttle having a wooden body with a threading slot which terminates as an eye in the wood; of a threading block which forms part of the top of one side of said threading slot; with a metal eye lining which fits the eye in the wood and is of substantially U shape.

18 having a back arm which extends up into a recess in the under side of said threading block a i and also has a tooth recess, said lining also having a front arm which extends up and is bent forward and down into the wood, said 80 front arm also having a holding tooth extending from the front arm down and back into the tooth recess in the back arm.

2. The combination in a self threading shuttle having a wooden body with a threading slot which terminates as an eye in the wood; of a threading block which forms part of the top of one side of said threading slot; with a metal eye lining which fits the eye in the wood and is of substantially U shape havinga back arm which extends up under said threading block and also has a tooth recess, said lining also having a front arm which has a holding tooth extending from the front arm down and back into the tooth recess in the 46 back arm. v

In testimony whereof I have affixed my signature. g 7

WILLIAM H. SHERMAN. 

